Eirdu, Carrier of Dawn
Umbral Collar Zealot
Sightless Ghoul

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield and Sightless Ghoul without a +1/+1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing Sightless Ghoul
2
When Sightless Ghoul dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3
Activate Umbral Collar Zealot by sacrificing Sightless Ghoul
4
When Sightless Ghoul dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5
Resolve both Umbral Collar Zealot abilities from step 1 and 3.
6
Repeat.

   Results

What do I get from this combo?
Infinite +1/+1 counters on a creature
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite sacrifice triggers
Infinite surveil
Eirdu, Carrier of Dawn
1.5%inclusion62 decks4.22K decks
Teysa Karlov
0.0%inclusion1 decks8.10K decks
New Cards
Eclipsed Steppe
29%inclusion2 decks7 decks
11%synergy
Erode
14%inclusion1 decks7 decks
7%synergy
Splinter's Technique
4.5%inclusion2 decks44 decks
3%synergy
High Synergy Cards
Geralf's Messenger
90%inclusion57 decks63 decks
90%synergy
Butcher Ghoul
81%inclusion51 decks63 decks
80%synergy
Viscera Seer
92%inclusion58 decks63 decks
72%synergy
Carrion Feeder
71%inclusion45 decks63 decks
63%synergy
Cruel Celebrant
86%inclusion54 decks63 decks
61%synergy
Bastion of Remembrance
76%inclusion48 decks63 decks
58%synergy
Pitiless Plunderer
71%inclusion45 decks63 decks
55%synergy
Zulaport Cutthroat
76%inclusion48 decks63 decks
54%synergy
Evernight Shade
54%inclusion34 decks63 decks
54%synergy
Bartolomé del Presidio
70%inclusion44 decks63 decks
54%synergy
Top Cards
Swords to Plowshares
84%inclusion53 decks63 decks
20%synergy
Elas il-Kor, Sadistic Pilgrim
83%inclusion52 decks63 decks
48%synergy
Blood Artist
81%inclusion51 decks63 decks
51%synergy
Path to Exile
76%inclusion48 decks63 decks
27%synergy
Ashnod's Altar
65%inclusion41 decks63 decks
47%synergy
Luminous Broodmoth
60%inclusion38 decks63 decks
52%synergy
Corpse Knight
60%inclusion38 decks63 decks
48%synergy
Marionette Apprentice
59%inclusion37 decks63 decks
49%synergy
Woe Strider
56%inclusion35 decks63 decks
51%synergy
Vizier of Remedies
54%inclusion34 decks63 decks
53%synergy
Game Changers
Demonic Tutor
22%inclusion14 decks63 decks
7%synergy
Enlightened Tutor
13%inclusion8 decks63 decks
2%synergy
Bolas's Citadel
13%inclusion8 decks63 decks
-1%synergy
Vampiric Tutor
11%inclusion7 decks63 decks
0%synergy
Smothering Tithe
11%inclusion7 decks63 decks
-11%synergy
Necropotence
7.9%inclusion5 decks63 decks
2%synergy
Ancient Tomb
7.9%inclusion5 decks63 decks
2%synergy
Teferi's Protection
7.9%inclusion5 decks63 decks
-7%synergy
Creatures
Grim Haruspex
52%inclusion33 decks63 decks
43%synergy
Solemn Simulacrum
52%inclusion33 decks63 decks
37%synergy
Mikaeus, the Unhallowed
48%inclusion30 decks63 decks
45%synergy
Hancock, Ghoulish Mayor
43%inclusion27 decks63 decks
43%synergy
Morbid Opportunist
40%inclusion25 decks63 decks
28%synergy
Vengeful Bloodwitch
37%inclusion23 decks63 decks
31%synergy
Gray Merchant of Asphodel
37%inclusion23 decks63 decks
26%synergy
Yahenni, Undying Partisan
35%inclusion22 decks63 decks
25%synergy
Scholar of New Horizons
33%inclusion21 decks63 decks
31%synergy
Zack Fair
33%inclusion21 decks63 decks
30%synergy
Syr Konrad, the Grim
33%inclusion21 decks63 decks
25%synergy
Midnight Reaper
32%inclusion20 decks63 decks
25%synergy
Warren Soultrader
32%inclusion20 decks63 decks
22%synergy
Elenda, the Dusk Rose
32%inclusion20 decks63 decks
12%synergy
Teysa Karlov
29%inclusion18 decks63 decks
13%synergy
Rhys, the Evermore
25%inclusion13 decks52 decks
23%synergy
Vengeful Vampire
22%inclusion14 decks63 decks
22%synergy
Treacherous Pit-Dweller
22%inclusion14 decks63 decks
22%synergy
Demonlord of Ashmouth
22%inclusion14 decks63 decks
22%synergy
Esper Sentinel
22%inclusion14 decks63 decks
4%synergy
Accursed Marauder
21%inclusion13 decks63 decks
13%synergy
Braids, Arisen Nightmare
21%inclusion13 decks63 decks
9%synergy
Triskelion
19%inclusion12 decks63 decks
19%synergy
Junji, the Midnight Sky
19%inclusion12 decks63 decks
15%synergy
Yawgmoth, Thran Physician
19%inclusion12 decks63 decks
12%synergy
Witch Enchanter
19%inclusion12 decks63 decks
7%synergy
Boggart Trawler
17%inclusion11 decks63 decks
11%synergy
Lotho, Corrupt Shirriff
17%inclusion11 decks63 decks
-2%synergy
The Duke, Rebel Sentry
17%inclusion10 decks58 decks
16%synergy
Spirited Companion
16%inclusion10 decks63 decks
11%synergy
Sephiroth, Fabled SOLDIER
14%inclusion9 decks63 decks
7%synergy
Teysa, Orzhov Scion
14%inclusion9 decks63 decks
6%synergy
Selfless Spirit
14%inclusion9 decks63 decks
3%synergy
Sun Titan
14%inclusion9 decks63 decks
2%synergy
Welcoming Vampire
14%inclusion9 decks63 decks
0%synergy
Emptiness
13%inclusion8 decks63 decks
11%synergy
Gravecrawler
13%inclusion8 decks63 decks
10%synergy
Bitterbloom Bearer
13%inclusion8 decks63 decks
8%synergy
Falkenrath Noble
13%inclusion8 decks63 decks
7%synergy
Pawn of Ulamog
13%inclusion8 decks63 decks
6%synergy
Endling
11%inclusion7 decks63 decks
11%synergy
Dockworker Drone
11%inclusion7 decks63 decks
11%synergy
Putrid Goblin
11%inclusion7 decks63 decks
10%synergy
Syr Vondam, Sunstar Exemplar
11%inclusion7 decks63 decks
3%synergy
Soul Warden
11%inclusion7 decks63 decks
-6%synergy
Twilight Diviner
10%inclusion5 decks51 decks
7%synergy
Agent Venom
10%inclusion6 decks63 decks
8%synergy
Susurian Voidborn
10%inclusion6 decks63 decks
8%synergy
Knight of the White Orchid
10%inclusion6 decks63 decks
1%synergy
Reassembling Skeleton
10%inclusion6 decks63 decks
1%synergy
Instants
Dark Ritual
52%inclusion33 decks63 decks
28%synergy
Deadly Dispute
49%inclusion31 decks63 decks
27%synergy
Village Rites
43%inclusion27 decks63 decks
21%synergy
Anguished Unmaking
35%inclusion22 decks63 decks
-6%synergy
Corrupted Conviction
30%inclusion19 decks63 decks
19%synergy
Undying Evil
25%inclusion16 decks63 decks
25%synergy
Despark
25%inclusion16 decks63 decks
-5%synergy
Generous Gift
22%inclusion14 decks63 decks
-1%synergy
Silence
21%inclusion13 decks63 decks
17%synergy
Fracture
19%inclusion12 decks63 decks
-1%synergy
Mortify
17%inclusion11 decks63 decks
-5%synergy
Flare of Fortitude
16%inclusion10 decks63 decks
9%synergy
Fell the Profane
16%inclusion10 decks63 decks
3%synergy
Culling the Weak
13%inclusion8 decks63 decks
9%synergy
Reprieve
13%inclusion8 decks63 decks
5%synergy
Inkshield
13%inclusion8 decks63 decks
-6%synergy
Cabal Ritual
11%inclusion7 decks63 decks
8%synergy
Plumb the Forbidden
11%inclusion7 decks63 decks
5%synergy
Duty Beyond Death
10%inclusion6 decks63 decks
7%synergy
Imp's Mischief
10%inclusion6 decks63 decks
5%synergy
Dawn's Truce
10%inclusion6 decks63 decks
2%synergy
Malakir Rebirth
10%inclusion6 decks63 decks
-2%synergy
Deadly Rollick
10%inclusion6 decks63 decks
-2%synergy
Altar's Reap
7.9%inclusion5 decks63 decks
7%synergy
Saw in Half
7.9%inclusion5 decks63 decks
4%synergy
Go for the Throat
7.9%inclusion5 decks63 decks
3%synergy
Stroke of Midnight
7.9%inclusion5 decks63 decks
-5%synergy
Surge of Salvation
6.3%inclusion4 decks63 decks
5%synergy
Flare of Malice
6.3%inclusion4 decks63 decks
4%synergy
Restoration Magic
6.3%inclusion4 decks63 decks
2%synergy
Sorceries
Damn
37%inclusion23 decks63 decks
4%synergy
Night's Whisper
35%inclusion22 decks63 decks
17%synergy
Victimize
33%inclusion21 decks63 decks
16%synergy
Sign in Blood
27%inclusion17 decks63 decks
9%synergy
Diabolic Intent
25%inclusion16 decks63 decks
16%synergy
Reanimate
25%inclusion16 decks63 decks
10%synergy
Diabolic Tutor
24%inclusion15 decks63 decks
18%synergy
Sevinne's Reclamation
21%inclusion13 decks63 decks
11%synergy
Austere Command
14%inclusion9 decks63 decks
-3%synergy
Beseech the Mirror
11%inclusion7 decks63 decks
8%synergy
Grim Tutor
10%inclusion6 decks63 decks
6%synergy
Damnation
10%inclusion6 decks63 decks
5%synergy
Feed the Swarm
10%inclusion6 decks63 decks
2%synergy
Vindicate
10%inclusion6 decks63 decks
-3%synergy
Toxic Deluge
10%inclusion6 decks63 decks
-8%synergy
Beseech the Queen
7.9%inclusion5 decks63 decks
7%synergy
Insatiable Avarice
7.9%inclusion5 decks63 decks
4%synergy
Vanquish the Horde
7.9%inclusion5 decks63 decks
4%synergy
Rite of Oblivion
7.9%inclusion5 decks63 decks
-1%synergy
Read the Bones
7.9%inclusion5 decks63 decks
-2%synergy
Profane Tutor
6.3%inclusion4 decks63 decks
5%synergy
Dread Return
6.3%inclusion4 decks63 decks
3%synergy
Living Death
6.3%inclusion4 decks63 decks
3%synergy
Blasphemous Edict
6.3%inclusion4 decks63 decks
1%synergy
Exsanguinate
6.3%inclusion4 decks63 decks
-7%synergy
Utility Artifacts
Skullclamp
44%inclusion28 decks63 decks
18%synergy
Phyrexian Altar
40%inclusion25 decks63 decks
28%synergy
Altar of Dementia
38%inclusion24 decks63 decks
34%synergy
Swiftfoot Boots
37%inclusion23 decks63 decks
12%synergy
Blasting Station
35%inclusion22 decks63 decks
34%synergy
Lightning Greaves
25%inclusion16 decks63 decks
6%synergy
Jet Medallion
17%inclusion11 decks63 decks
11%synergy
Pearl Medallion
16%inclusion10 decks63 decks
9%synergy
Spawning Pit
14%inclusion9 decks63 decks
12%synergy
Oketra's Monument
7.9%inclusion5 decks63 decks
3%synergy
Altar of the Brood
6.3%inclusion4 decks63 decks
5%synergy
Wishclaw Talisman
6.3%inclusion4 decks63 decks
3%synergy
Enchantments
Cathars' Crusade
51%inclusion32 decks63 decks
46%synergy
Solemnity
48%inclusion30 decks63 decks
45%synergy
Thran Vigil
35%inclusion22 decks63 decks
34%synergy
Phyrexian Arena
29%inclusion18 decks63 decks
0%synergy
Fanatical Devotion
14%inclusion9 decks63 decks
13%synergy
The Meathook Massacre
14%inclusion9 decks63 decks
4%synergy
Black Market Connections
14%inclusion9 decks63 decks
-8%synergy
Martyr's Cause
13%inclusion8 decks63 decks
12%synergy
Sothera, the Supervoid
11%inclusion7 decks63 decks
9%synergy
Vampiric Rites
11%inclusion7 decks63 decks
4%synergy
Grave Pact
11%inclusion7 decks63 decks
2%synergy
Barrensteppe Siege
10%inclusion6 decks63 decks
6%synergy
Blind Obedience
10%inclusion6 decks63 decks
-8%synergy
Haunted One
7.9%inclusion5 decks63 decks
7%synergy
Funeral Room // Awakening Hall
7.9%inclusion5 decks63 decks
4%synergy
Bitterblossom
7.9%inclusion5 decks63 decks
0%synergy
Animate Dead
7.9%inclusion5 decks63 decks
-2%synergy
Land Tax
7.9%inclusion5 decks63 decks
-3%synergy
Skrelv's Hive
6.3%inclusion4 decks63 decks
1%synergy
Dictate of Erebos
6.3%inclusion4 decks63 decks
0%synergy
Authority of the Consuls
6.3%inclusion4 decks63 decks
-9%synergy
Kinbinding
5.8%inclusion3 decks52 decks
5%synergy
Planeswalkers
Liliana, Dreadhorde General
11%inclusion7 decks63 decks
5%synergy
Utility Lands
Bojuka Bog
38%inclusion24 decks63 decks
-6%synergy
Phyrexian Tower
29%inclusion18 decks63 decks
12%synergy
High Market
14%inclusion9 decks63 decks
3%synergy
Urborg, Tomb of Yawgmoth
14%inclusion9 decks63 decks
-7%synergy
Abandoned Air Temple
12%inclusion7 decks58 decks
8%synergy
Reliquary Tower
11%inclusion7 decks63 decks
-12%synergy
Vault of the Archangel
11%inclusion7 decks63 decks
-22%synergy
Nesting Grounds
10%inclusion6 decks63 decks
5%synergy
Susur Secundi, Void Altar
10%inclusion6 decks63 decks
5%synergy
Midgar, City of Mako
10%inclusion6 decks63 decks
4%synergy
Spymaster's Vault
7.9%inclusion5 decks63 decks
3%synergy
Takenuma, Abandoned Mire
7.9%inclusion5 decks63 decks
-3%synergy
Cabal Coffers
7.9%inclusion5 decks63 decks
-4%synergy
Rogue's Passage
7.9%inclusion5 decks63 decks
-12%synergy
Mana Artifacts
Sol Ring
92%inclusion58 decks63 decks
8%synergy
Arcane Signet
84%inclusion53 decks63 decks
4%synergy
Talisman of Hierarchy
67%inclusion42 decks63 decks
14%synergy
Orzhov Signet
67%inclusion42 decks63 decks
12%synergy
Fellwar Stone
38%inclusion24 decks63 decks
17%synergy
Mind Stone
29%inclusion18 decks63 decks
5%synergy
Thought Vessel
24%inclusion15 decks63 decks
10%synergy
Commander's Sphere
24%inclusion15 decks63 decks
9%synergy
The Soul Stone
14%inclusion9 decks63 decks
9%synergy
Marble Diamond
13%inclusion8 decks63 decks
7%synergy
Charcoal Diamond
13%inclusion8 decks63 decks
7%synergy
Crowded Crypt
10%inclusion6 decks63 decks
8%synergy
Lands
Command Tower
86%inclusion54 decks63 decks
-1%synergy
Isolated Chapel
79%inclusion50 decks63 decks
13%synergy
Tainted Field
67%inclusion42 decks63 decks
16%synergy
Caves of Koilos
65%inclusion41 decks63 decks
8%synergy
Fetid Heath
62%inclusion39 decks63 decks
21%synergy
Shineshadow Snarl
56%inclusion35 decks63 decks
14%synergy
Godless Shrine
52%inclusion33 decks63 decks
1%synergy
Temple of Silence
44%inclusion28 decks63 decks
5%synergy
Exotic Orchard
40%inclusion25 decks63 decks
15%synergy
Desolate Mire
38%inclusion24 decks63 decks
21%synergy
Orzhov Basilica
32%inclusion20 decks63 decks
-8%synergy
Bleachbone Verge
29%inclusion18 decks63 decks
5%synergy
Shattered Sanctum
29%inclusion18 decks63 decks
-8%synergy
Vault of Champions
29%inclusion18 decks63 decks
-11%synergy
Brightclimb Pathway
25%inclusion16 decks63 decks
-1%synergy
Marsh Flats
21%inclusion13 decks63 decks
-9%synergy
Shadowy Backstreet
19%inclusion12 decks63 decks
-4%synergy
Myriad Landscape
16%inclusion10 decks63 decks
-3%synergy
Concealed Courtyard
16%inclusion10 decks63 decks
-5%synergy
Path of Ancestry
13%inclusion8 decks63 decks
-10%synergy
Silent Clearing
11%inclusion7 decks63 decks
-4%synergy
Evolving Wilds
11%inclusion7 decks63 decks
-9%synergy
Sunlit Marsh
7.9%inclusion5 decks63 decks
-3%synergy
Reflecting Pool
6.3%inclusion4 decks63 decks
3%synergy
City of Brass
6.3%inclusion4 decks63 decks
3%synergy
Forlorn Flats
6.3%inclusion4 decks63 decks
1%synergy
Prismatic Vista
6.3%inclusion4 decks63 decks
1%synergy
Scrubland
6.3%inclusion4 decks63 decks
-5%synergy
Terramorphic Expanse
6.3%inclusion4 decks63 decks
-8%synergy
Scoured Barrens
6.3%inclusion4 decks63 decks
-17%synergy